| |
CX2SA > SATDIG 20.08.16 05:09l 824 Lines 28957 Bytes #999 (0) @ WW
BID : AMSATBB11264
Read: GUEST
Subj: AMSAT-BB-digest V11 264
Path: IW8PGT<CX2SA
Sent: 160820/0259Z @:CX2SA.SAL.URY.SOAM #:51494 [Salto] FBB7.00e $:AMSATBB11264
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: RHCP/LHCP (Larry Koziel)
2. Intermittent loss of full-duplex with Arrow,
built-in-duplexer and TH-D72a (John Brier)
3. Re: Intermittent loss of full-duplex with Arrow,
built-in-duplexer and TH-D72a (John Brier)
4. Re: Intermittent loss of full-duplex with Arrow,
built-in-duplexer and TH-D72a (John Brier)
5. Re: Intermittent loss of full-duplex with Arrow,
built-in-duplexer and TH-D72a (John Brier)
6. Re: AO-73/FUNcube (Jim Heck G3WGM)
7. Re: Satellite Operation - Nash Point - wales -UK (GW1FKY@xxx.xxxx
8. Any recommendations on a good dual band HT whip??
(n4csitwo@xxxxxxxxx.xxxx
9. Re: Any recommendations on a good dual band HT whip?? (Greg D)
10. Re: Any recommendations on a good dual band HT whip?? (Ted)
11. Re: Any recommendations on a good dual band HT whip??
(Jim Jerzycke)
12. Re: Any recommendations on a good dual band HT whip?? (Alan)
13. Re: Any recommendations on a good dual band HT whip??
(Scott Medbury)
----------------------------------------------------------------------
Message: 1
Date: Fri, 19 Aug 2016 11:13:10 -0400
From: Larry Koziel <aptura.larry@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] RHCP/LHCP
Message-ID: <96aba0b2-1437-6a31-7360-d87da5c32a2d@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Jerry,
There are, unfortunately, two conventions for specifying the handedness
of circular polarity. See the "Left/right handedness conventions"
section of the Wikipedia article on Circular polarization at:
https://en.wikipedia.org/wiki/Circular_polarization#Left.2Fright_handedness_co
nventions.
I would certainly agree with you that in the context of radio antennas,
that SV1BSX got it wrong and should have used the other other convention.
Regards,
Larry K8MU
------------------------------
Message: 2
Date: Fri, 19 Aug 2016 13:48:01 -0400
From: John Brier <johnbrier@xxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Intermittent loss of full-duplex with Arrow,
built-in-duplexer and TH-D72a
Message-ID:
<CALn0fKNW9HKs13sUUBTUzbV4+TGsGe01BzaSKik8WA+5FTWuxg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
For the third time I've lost the ability to hear myself on the
downlink of SO-50 using this setup. This was on today's 1521 UTC SO-50
pass.
In the past I had what appeared to be very similar behavior with a
different arrow antenna, no duplexer and two radios. I troubleshot
that issue to the screw in the gamma match coming lose which caused
high SWR.
In this case I tested the SWR with my MFJ-259B SWR analyzer and it was
1.1:1 and X=45-55 across almost the entire band.
I actually was able to hear myself in the beginning of the pass and
then it got worse until the point where I could not hear myself for
the rest of the pass.
Actually, in this case, unlike the other two times where I wasn't able
to hear myself on the downlink I had another unusual behavior which
was I *WAS* able to hear myself but it was extremely loud and
distorted. This happened maybe twice in the middle of the pass and
then after that I just couldn't hear myself when I transmitted.
When I was able to hear myself very loud and distorted I felt it
wasn't how I was getting into the bird, but somehow my radio was
demodulating my 2 meter transmission. I confirmed with W4FS who was
also on this pass that my audio never sounded odd.
Very annoying and my only guess as to what could be causing this is
some sort of external interference occasionally getting into my radio.
Any ideas?
73, John Brier KG4AKV
------------------------------
Message: 3
Date: Fri, 19 Aug 2016 14:11:55 -0400
From: John Brier <johnbrier@xxxxx.xxx>
To: "R.T.Liddy" <k8bl@xxxxxxxxx.xxx>, AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Intermittent loss of full-duplex with Arrow,
built-in-duplexer and TH-D72a
Message-ID:
<CALn0fKNwiR3LbX7b1boKCR2pBQnC-QE=6b+F_qwNCQgtU0iX4A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I'm only running 5 watts. Just using my Kenwood TH-D72a HT.
73, John Brier KG4AKV
On Fri, Aug 19, 2016 at 2:05 PM, R.T.Liddy <k8bl@xxxxxxxxx.xxx> wrote:
> John,
>
> How much power are you running? Are you overheating
> the duplexer?
>
> GL/73, Bob K8BL
>
>
> ________________________________
> From: John Brier <johnbrier@xxxxx.xxx>
> To: AMSAT BB <amsat-bb@xxxxx.xxx>
> Sent: Friday, August 19, 2016 1:48 PM
> Subject: [amsat-bb] Intermittent loss of full-duplex with Arrow,
> built-in-duplexer and TH-D72a
>
> For the third time I've lost the ability to hear myself on the
> downlink of SO-50 using this setup. This was on today's 1521 UTC SO-50
> pass.
>
> In the past I had what appeared to be very similar behavior with a
> different arrow antenna, no duplexer and two radios. I troubleshot
> that issue to the screw in the gamma match coming lose which caused
> high SWR.
>
> In this case I tested the SWR with my MFJ-259B SWR analyzer and it was
> 1.1:1 and X=45-55 across almost the entire band.
>
> I actually was able to hear myself in the beginning of the pass and
> then it got worse until the point where I could not hear myself for
> the rest of the pass.
>
> Actually, in this case, unlike the other two times where I wasn't able
> to hear myself on the downlink I had another unusual behavior which
> was I *WAS* able to hear myself but it was extremely loud and
> distorted. This happened maybe twice in the middle of the pass and
> then after that I just couldn't hear myself when I transmitted.
>
> When I was able to hear myself very loud and distorted I felt it
> wasn't how I was getting into the bird, but somehow my radio was
> demodulating my 2 meter transmission. I confirmed with W4FS who was
> also on this pass that my audio never sounded odd.
>
> Very annoying and my only guess as to what could be causing this is
> some sort of external interference occasionally getting into my radio.
>
> Any ideas?
>
> 73, John Brier KG4AKV
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
------------------------------
Message: 4
Date: Fri, 19 Aug 2016 14:46:17 -0400
From: John Brier <johnbrier@xxxxx.xxx>
To: James Duffey <jamesduffey@xxxxxxx.xxx>, AMSAT BB
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Intermittent loss of full-duplex with Arrow,
built-in-duplexer and TH-D72a
Message-ID:
<CALn0fKNrg+KhRLKgtuwdg5wgbCX5J7yHRF0M2ro-qwTcUe_Lvg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I may have found the cause of the distortion, and another bit of helpful info:
I got a copy of the audio of the pass from someone else and I'm
comparing it to mine. When I am transmitting there are at least three
places where I can hear other transmissions, clearly different FM
transmissions of other people talking. At one point I even hear a
roger beep like sound followed by another voice. That could just be a
symptom of whatever is causing the desense though.
Regarding this:
On Fri, Aug 19, 2016 at 2:12 PM, James Duffey <jamesduffey@xxxxxxx.xxx> wrote:
> If I had to guess, I would say that you have a feed line problem, either a
short or open.
>
> Another option may be a poor connection or a short in the diplexer. -
Duffey KK6MC
>
I have suspected the duplexer myself. There is only one connection
from it to the radio. No adapters. The feedline from the duplexer has
an SMA connector and screws right onto the SMA on the Kenwood TH-D72a.
Still it could be the BNC connectors that go to the antenna.
I asked the owner of Arrow antenna about the possibility of this issue
being caused by the duplexer and he was not aware of that ever
happening before.
:-/
On Fri, Aug 19, 2016 at 2:12 PM, James Duffey <jamesduffey@xxxxxxx.xxx> wrote:
> If I had to guess, I would say that you have a feed line problem, either a
short or open.
>
> Another option may be a poor connection or a short in the diplexer. -
Duffey KK6MC
>
> On Aug 19, 2016, at 11:48 AM, John Brier <johnbrier@xxxxx.xxx> wrote:
>
>> For the third time I've lost the ability to hear myself on the
>> downlink of SO-50 using this setup. This was on today's 1521 UTC SO-50
>> pass.
>>
>> In the past I had what appeared to be very similar behavior with a
>> different arrow antenna, no duplexer and two radios. I troubleshot
>> that issue to the screw in the gamma match coming lose which caused
>> high SWR.
>>
>> In this case I tested the SWR with my MFJ-259B SWR analyzer and it was
>> 1.1:1 and X=45-55 across almost the entire band.
>>
>> I actually was able to hear myself in the beginning of the pass and
>> then it got worse until the point where I could not hear myself for
>> the rest of the pass.
>>
>> Actually, in this case, unlike the other two times where I wasn't able
>> to hear myself on the downlink I had another unusual behavior which
>> was I *WAS* able to hear myself but it was extremely loud and
>> distorted. This happened maybe twice in the middle of the pass and
>> then after that I just couldn't hear myself when I transmitted.
>>
>> When I was able to hear myself very loud and distorted I felt it
>> wasn't how I was getting into the bird, but somehow my radio was
>> demodulating my 2 meter transmission. I confirmed with W4FS who was
>> also on this pass that my audio never sounded odd.
>>
>> Very annoying and my only guess as to what could be causing this is
>> some sort of external interference occasionally getting into my radio.
>>
>> Any ideas?
>>
>> 73, John Brier KG4AKV
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
Opinions expressed
>> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 5
Date: Fri, 19 Aug 2016 15:01:22 -0400
From: John Brier <johnbrier@xxxxx.xxx>
To: James Duffey <jamesduffey@xxxxxxx.xxx>, AMSAT BB
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Intermittent loss of full-duplex with Arrow,
built-in-duplexer and TH-D72a
Message-ID:
<CALn0fKNMjTtwiRueQn=kRektGm_i-T3evdEGec_uiBFizp6rxQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Compare my recording:
https://www.dropbox.com/s/rt6lashyisefmhl/KG4AKV_-_SO-50_-_2016-08-18_-_1521_U
TC.mp3?dl=0
To Clayton's recording:
https://www.dropbox.com/s/9rgwalksajpz2br/Recording_from_Clayton_W5PFG.mp3?dl=
0
Best done in Audacity or another DAW/audio editing app. Start his
recording approximately 11-12 seconds after mine.
You can hear the other FM transmissions at 03:30, 03:55 (and in
particular 03:58) and 05:28
Here is my partial log of the pass:
Nothing until 01:55
02:14 N8IUP EN81 CONTACTED
02:51 K8OE
03:05 K8OE
03:30 something on my recording that isn't on Clayton's
03:55 "", in particular right at 3:58
03:51 K8OE CONTACTED
04:06 N1MDJ EM66 CONTACTED
04:25 W4FS
04:
05:10 KC3BPM FM19 CONTACTED
05:28 something on my recording that isn't on Clayton's
05:49 DISTORTION
08:02 DOPPLER ADJUSTMENT SOUNDS WEIRD
08:24 XE1AY/P
08:43 KO4MA calls XE1AP/P
10:32 KO4MA EL88 CONTACTED - LOSS of FULL DUPLEX
12:50 ????
13:03 KO4MA tells me I'm still in there
13:07 9Y4PX
13:14 GET EM JOHN
13:19 9Y4PX
73, John Brier KG4AKV
On Fri, Aug 19, 2016 at 2:46 PM, John Brier <johnbrier@xxxxx.xxx> wrote:
> I may have found the cause of the distortion, and another bit of helpful
info:
>
> I got a copy of the audio of the pass from someone else and I'm
> comparing it to mine. When I am transmitting there are at least three
> places where I can hear other transmissions, clearly different FM
> transmissions of other people talking. At one point I even hear a
> roger beep like sound followed by another voice. That could just be a
> symptom of whatever is causing the desense though.
>
> Regarding this:
>
> On Fri, Aug 19, 2016 at 2:12 PM, James Duffey <jamesduffey@xxxxxxx.xxx>
wrote:
>> If I had to guess, I would say that you have a feed line problem, either
a short or open.
>>
>> Another option may be a poor connection or a short in the diplexer. -
Duffey KK6MC
>>
>
> I have suspected the duplexer myself. There is only one connection
> from it to the radio. No adapters. The feedline from the duplexer has
> an SMA connector and screws right onto the SMA on the Kenwood TH-D72a.
> Still it could be the BNC connectors that go to the antenna.
>
> I asked the owner of Arrow antenna about the possibility of this issue
> being caused by the duplexer and he was not aware of that ever
> happening before.
>
> :-/
>
>
> On Fri, Aug 19, 2016 at 2:12 PM, James Duffey <jamesduffey@xxxxxxx.xxx>
wrote:
>> If I had to guess, I would say that you have a feed line problem, either
a short or open.
>>
>> Another option may be a poor connection or a short in the diplexer. -
Duffey KK6MC
>>
>> On Aug 19, 2016, at 11:48 AM, John Brier <johnbrier@xxxxx.xxx> wrote:
>>
>>> For the third time I've lost the ability to hear myself on the
>>> downlink of SO-50 using this setup. This was on today's 1521 UTC SO-50
>>> pass.
>>>
>>> In the past I had what appeared to be very similar behavior with a
>>> different arrow antenna, no duplexer and two radios. I troubleshot
>>> that issue to the screw in the gamma match coming lose which caused
>>> high SWR.
>>>
>>> In this case I tested the SWR with my MFJ-259B SWR analyzer and it was
>>> 1.1:1 and X=45-55 across almost the entire band.
>>>
>>> I actually was able to hear myself in the beginning of the pass and
>>> then it got worse until the point where I could not hear myself for
>>> the rest of the pass.
>>>
>>> Actually, in this case, unlike the other two times where I wasn't able
>>> to hear myself on the downlink I had another unusual behavior which
>>> was I *WAS* able to hear myself but it was extremely loud and
>>> distorted. This happened maybe twice in the middle of the pass and
>>> then after that I just couldn't hear myself when I transmitted.
>>>
>>> When I was able to hear myself very loud and distorted I felt it
>>> wasn't how I was getting into the bird, but somehow my radio was
>>> demodulating my 2 meter transmission. I confirmed with W4FS who was
>>> also on this pass that my audio never sounded odd.
>>>
>>> Very annoying and my only guess as to what could be causing this is
>>> some sort of external interference occasionally getting into my radio.
>>>
>>> Any ideas?
>>>
>>> 73, John Brier KG4AKV
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>>> to all interested persons worldwide without requiring membership.
Opinions expressed
>>> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
------------------------------
Message: 6
Date: Fri, 19 Aug 2016 20:26:58 +0100
From: "Jim Heck G3WGM" <jimlist@xxxx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-73/FUNcube
Message-ID: <B3BEA28EC3FC47DC84506990A3AC18F1@xxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
Hi Folks
I have just switched AO-73/FUNcube into full time transponder mode (Amateur
Mode).
As normal, plan to switch back to education mode on Sunday PM UTC
See www.funcube.org.uk for details of the satellite.
Have FUN!
73s Jim G3WGM
------------------------------
Message: 7
Date: Fri, 19 Aug 2016 16:09:50 -0400
From: GW1FKY@xxx.xxx
To: amsat-bb@xxxxx.xxx
Cc: jimlist@xxxxxx.xx.xxxx glyndxis@xxxxxxxx.xxx
Subject: Re: [amsat-bb] Satellite Operation - Nash Point - wales -UK
Message-ID: <4a555.38cc92ef.44e8c18e@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
Reference my posting to the amsat -bbs and details about satellite and HF
operation from NASH -Point,
South Wales -UK. by the Barry Amateur Radio Society.
Apologies I made a an error with one of the stated call signs. The
correct call signs for the operation
are " GC4BRS " and "GC6BRC".
All of the other information is correct and as stated in posting to the
bbs.
Once again my apologies.
Ken Eaton
GW1FKY
------------------------------
Message: 8
Date: Fri, 19 Aug 2016 18:16:31 -0400
From: <n4csitwo@xxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Any recommendations on a good dual band HT whip??
Message-ID: <C2CF9DD82F0A457EA33313D58C6A9EE7@xxx>
Content-Type: text/plain; charset="iso-8859-1"
I need to find a good 2M/70cm dual band HT whip currently on the market. All
the ones I've analyzed appear to be off frequency. Any suggestions are
appreciated.
Dave, AA4KN
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
------------------------------
Message: 9
Date: Fri, 19 Aug 2016 15:22:09 -0700
From: Greg D <ko6th.greg@xxxxx.xxx>
To: n4csitwo@xxxxxxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Any recommendations on a good dual band HT
whip??
Message-ID: <57B78691.7030308@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Just curious, which ones have you looked at? I've been using the RH-77B
(from Diamond, I think) for years, but am blissfully unaware of its
characteristics.
Greg KO6TH
n4csitwo@xxxxxxxxx.xxx wrote:
> I need to find a good 2M/70cm dual band HT whip currently on the market.
All the ones I've analyzed appear to be off frequency. Any suggestions are
appreciated.
>
> Dave, AA4KN
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 10
Date: Fri, 19 Aug 2016 17:28:57 -0700
From: "Ted" <k7trkradio@xxxxxxx.xxx>
To: "'Greg D'" <ko6th.greg@xxxxx.xxx>, <n4csitwo@xxxxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Any recommendations on a good dual band HT
whip??
Message-ID: <002701d1fa79$d78528b0$868f7a10$@xxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Ditto Diamond SRH77CA...works fine
73, K7TRK
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Greg D
Sent: Friday, August 19, 2016 3:22 PM
To: n4csitwo@xxxxxxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Any recommendations on a good dual band HT whip??
Just curious, which ones have you looked at? I've been using the RH-77B
(from Diamond, I think) for years, but am blissfully unaware of its
characteristics.
Greg KO6TH
n4csitwo@xxxxxxxxx.xxx wrote:
> I need to find a good 2M/70cm dual band HT whip currently on the market.
All the ones I've analyzed appear to be off frequency. Any suggestions are
appreciated.
>
> Dave, AA4KN
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed are solely those of the author, and do not reflect the
official views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
interested persons worldwide without requiring membership. Opinions
expressed are solely those of the author, and do not reflect the official
views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 11
Date: Sat, 20 Aug 2016 01:19:11 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Any recommendations on a good dual band HT
whip??
Message-ID: <d56d7beb-a71d-0025-cf9e-41a8dc1ed335@xxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
Same here. I have both the SMA and BNC versions of it, and it works far
better than the stock antennas that came with the radios.
73, Jim KQ6EA
On 08/20/2016 12:28 AM, Ted wrote:
> Ditto Diamond SRH77CA...works fine
>
> 73, K7TRK
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Greg D
> Sent: Friday, August 19, 2016 3:22 PM
> To: n4csitwo@xxxxxxxxx.xxxx amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] Any recommendations on a good dual band HT whip??
>
> Just curious, which ones have you looked at? I've been using the RH-77B
> (from Diamond, I think) for years, but am blissfully unaware of its
> characteristics.
>
> Greg KO6TH
>
>
> n4csitwo@xxxxxxxxx.xxx wrote:
>> I need to find a good 2M/70cm dual band HT whip currently on the market.
> All the ones I've analyzed appear to be off frequency. Any suggestions are
> appreciated.
>> Dave, AA4KN
>>
>>
>> ---
>> This email has been checked for viruses by Avast antivirus software.
>> https://www.avast.com/antivirus
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed are solely those of the author, and do not reflect the
> official views of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
> interested persons worldwide without requiring membership. Opinions
> expressed are solely those of the author, and do not reflect the official
> views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 12
Date: Fri, 19 Aug 2016 21:25:14 -0500
From: Alan <wa4sca@xxxxx.xxx>
To: <n4csitwo@xxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Any recommendations on a good dual band HT
whip??
Message-ID: <000001d1fa8a$15f343b0$41d9cb10$@xxxxx.xxx>
Dave,
My favorite repeater is line of sight blocked by a hill. I can hear it fine,
but in general with the
stock antenna, whether Kenwood, Icom, or Yaesu equipment, I have a couple of
hot spots in the house
where I can get in. Consistently, switching to an RH-77 means I have good
general coverage with only a
couple of dead spots.
I have an AIMUHF analyzer, the same model the ARRL uses as their standard,
and all three RH-77s have
been slightly off resonance. Perhaps incorrectly, I attribute that to the
analyzer being part of the
antenna system when testing a rubber duck, which is not what is intended.
Even if that is wrong, the
practical results indicated there is no significant issue.
Just be careful to get them from a reputable dealer. The ones on EBay are
often physically
indistinguishable from the real thing, but can be far off frequency and
perform poorer than stock.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of
n4csitwo@xxxxxxxxx.xxx
<Sent: Friday, August 19, 2016 5:17 PM
<To: amsat-bb@xxxxx.xxx
<Subject: [amsat-bb] Any recommendations on a good dual band HT whip??
<
<I need to find a good 2M/70cm dual band HT whip currently on the market.
All the ones I've analyzed
<appear to be off frequency. Any suggestions are appreciated.
<
<Dave, AA4KN
<
<
<---
<This email has been checked for viruses by Avast antivirus software.
<https://www.avast.com/antivirus
<_______________________________________________
<Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
<to all interested persons worldwide without requiring membership. Opinions
expressed
<are solely those of the author, and do not reflect the official views of
AMSAT-NA.
<Not an AMSAT-NA member? Join now to support the amateur satellite program!
<Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 13
Date: Fri, 19 Aug 2016 21:56:35 -0500
From: Scott Medbury <smedbury@xxxxxxxxxx.xxx>
To: Ted <k7trkradio@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Any recommendations on a good dual band HT
whip??
Message-ID: <20160820025704.E908D882E@xxxxxxxxxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
The best one I have ever used for satellite is the telescopic Pryme AL-800.
Over 4000 contacts in 16 years. And numerous FM birds
73 ... Scott KD5FBA
Sent from my Verizon Wireless 4G LTE DROID
On Aug 19, 2016 7:28 PM, Ted <k7trkradio@xxxxxxx.xxx> wrote:
>
> Ditto?? Diamond SRH77CA...works fine
>
> 73, K7TRK
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Greg D
> Sent: Friday, August 19, 2016 3:22 PM
> To: n4csitwo@xxxxxxxxx.xxxx amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] Any recommendations on a good dual band HT whip??
>
> Just curious, which ones have you looked at?? I've been using the RH-77B
> (from Diamond, I think) for years, but am blissfully unaware of its
> characteristics.
>
> Greg? KO6TH
>
>
> n4csitwo@xxxxxxxxx.xxx wrote:
> > I need to find a good 2M/70cm dual band HT whip currently on the market.
> All the ones I've analyzed appear to be off frequency. Any suggestions are
> appreciated.
> >
> > Dave, AA4KN
> >
> >
> > ---
> > This email has been checked for viruses by Avast antivirus software.
> > https://www.avast.com/antivirus
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership.
> > Opinions expressed are solely those of the author, and do not reflect the
> official views of AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
> interested persons worldwide without requiring membership. Opinions
> expressed are solely those of the author, and do not reflect the official
> views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 11, Issue 264
*****************************************
Read previous mail | Read next mail
| |
