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CX2SA > SATDIG 24.01.19 16:15l 839 Lines 26398 Bytes #999 (0) @ WW
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Today's Topics:
1. Antenna pointing (Mike Herr)
2. Easy Satellite Pass Grouping (Robert Bruninga)
3. OrigamiSat-1 reception (Mike Seguin)
4. Anyone have a Gulf Alpha 70cm 8x8 CP antenna? (Bob Hammond)
5. Re: Anyone have a Gulf Alpha 70cm 8x8 CP antenna?
(Dave Webb KB1PVH)
6. Re: Easy Satellite Pass Grouping (George Henry)
7. Upcoming ARISS Contact Schedule as of 2019-01-23 23:30 UTC
(aj9n@???.????
8. AMSAT at Charlotte NC Hamfest? (Philip Jenkins)
9. FUNcube Warehouse Maintenance (David Johnson)
10. Masthead RF preamp suggestions? (Ken M)
11. Re: Masthead RF preamp suggestions? (planophore@???.???
12. Re: Masthead RF preamp suggestions? (Stephen E. Belter)
----------------------------------------------------------------------
Message: 1
Date: Tue, 22 Jan 2019 20:35:53 -0800
From: Mike Herr <wa6ara@?????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] Antenna pointing
Message-ID:
<CAJrga+VysS8M-m0KKSj7AznGGqJuKbtdH_cmTv5q8FeA8KChyA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Got on FO29 today after one of our gentle desert breeze wind storms.
Signals were way down as was my downlink. Finally worked Brent, VE5SWL, on
CW but it was a chore. Checked all the cables, rf seems to be going in the
right directions.Checked CAS-4B pass, same thing. Put the array flat and
dead South. Went outside and checked, dead flat but pointing due East. I
guess gain and side rejection is a real thing! ;>)
--
Mike Herr
WA6ARA
DM-15dp
Home of The QRP Ranch
No trees were killed in the sending of this message, however, a large
number of electrons were terribly inconvenienced.
"Dad says that anyone who can't use a slide rule is a cultural illiterate
and should not be allowed to vote. Mine is a beauty - a K&E 20-inch Log-log
Duplex Decitrig." - Robert Heinlein
------------------------------
Message: 2
Date: Wed, 23 Jan 2019 13:09:26 -0500
From: Robert Bruninga <bruninga@????.???>
To: amsat bb <amsat-bb@?????.???>
Cc: Jin Kang <kang@????.???>
Subject: [amsat-bb] Easy Satellite Pass Grouping
Message-ID: <1080703ad380128d98ad04aae91cec26@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I just found an easy way to get a printout off all amateur satellites for
the Morning, Afternoon, Evening and Overnight.
I have long been challenged to be able to easily recommend to students a
good list of satellites to go track during class hours. Now I have an
easy way.
Just go to heavens-above.com and select Amateur satellites - all passes.
Then when the page comes up, select PRINT and it comes out to 4 pages.
(for me anyway)... When I did it around 1 PM, I got the pages roughly
split to the four groups above.
For classes, I can toss the evening and overnight and have two pages for
my students to find a pass during class times. These are usually good for
several days (not exact times) but for quickly assessing at a glance, what
satellites are generally coming over this week during the 8 AM to 6 PM
class times.
I do not show them the list, they are supposed to PREDICT a satellite pass
time by themselves, but this bundling gives me an easy list from which to
suggest good possibilities.
Of course, you have to be sure to enter your ground station location and
your latitude will make a difference to the total number of satlliites
involved. Your mileage may vary!
Bob, WB4APR
------------------------------
Message: 3
Date: Wed, 23 Jan 2019 13:17:42 -0500
From: Mike Seguin <n1jez@?????????????????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] OrigamiSat-1 reception
Message-ID:
<7bf98123-c27b-57c5-941b-5d23e171cf98@?????????????????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
On January 18, Origamisat-1 was launched in to orbit. Developed by the
Tokyo Institute of Technology, this satellite carries a 5.84 GHz
downlink similar to the one on FITSAT-1 NIWAKA.
Back in 2012, I was able to detect NIWAKA using my portable 5.760 GHz
rig. At the time, the satellite was primarily only active over the
control ground station in Japan. I put in a request for activation over
the East Coast of the US for several passes and was able to detect the
5.84 GHz downlink.
I've been in contact with the control operators of Origamisat-1 and they
are interested in activating the 5.84 GHz downlink for me during some
East Coast passes.
Tracking Origamisat-1 is a real challenge. It is a LEO, so is only
visible for 10-15 minutes depending on the pass. The challenge is not
only tracking the satellite both AZ and EL with a dish that has maybe
3-5 degree beamwidth, but the Doppler can run a little over ?100 kHz.
The 5.84 GHz downlink is 420KF1D 115kbps. It transmits for 10 secs and
is then off for 5 secs and then repeats.
For my NIWAKA reception, I used a 2' dish with my DEMI 5760 transverter
and for an IF, a Funcube Dongle SDR tuned to 224.000 MHz. I used a
original Funcube for my first reception which only had 96 kHz BW, but
will use a Funcube Pro+ this time which has 196 kHz BW which should
eliminate having to tune at all during the pass.
Is there any interest from others in trying to detect the downlink?
I will be looking at possible passes in early February. The Origamisat-1
team is now still in the initial testing phases, so it will be a while
before I can try.
If you are interested, please let me know so we can coordinate our efforts.
--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"
------------------------------
Message: 4
Date: Wed, 23 Jan 2019 10:53:56 -0800
From: Bob Hammond <propgrinder@?????.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: [amsat-bb] Anyone have a Gulf Alpha 70cm 8x8 CP antenna?
Message-ID:
<CAKoB7Opj8z=u1YsqW6z6u84Y=bKWwb_xZaM=LLQAC=zkbbZOKA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I?ve lost the instructions on how to properly place the driven element
shorting blocks. I?ve tried using my SWR meter but with no good results.
Bob
------------------------------
Message: 5
Date: Wed, 23 Jan 2019 13:58:28 -0500
From: Dave Webb KB1PVH <kb1pvh@?????.???>
To: Bob Hammond <propgrinder@?????.???>
Cc: AMSAT -BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Anyone have a Gulf Alpha 70cm 8x8 CP antenna?
Message-ID:
<CAEMY9FcSRdnzoanrQ97RMDiTNSmia3zLtxF=OGD-TX5+QQVi+A@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Go to http://www.gulfalphaantennas.com there's still pages with
tuning/assembly instructions.
Dave-KB1PVH
Sent from my Galaxy S9
On Wed, Jan 23, 2019, 1:55 PM Bob Hammond <propgrinder@?????.??? wrote:
> I?ve lost the instructions on how to properly place the driven element
> shorting blocks. I?ve tried using my SWR meter but with no good results.
>
> Bob
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: Wed, 23 Jan 2019 18:55:39 -0600
From: "George Henry" <ka3hsw@???.???>
To: "'Robert Bruninga'" <bruninga@????.???>, "'amsat bb'"
<amsat-bb@?????.???>
Cc: 'Jin Kang' <kang@????.???>
Subject: Re: [amsat-bb] Easy Satellite Pass Grouping
Message-ID: <24E87593A8274271B6AEF5B107F409FF@???????????>
Content-Type: text/plain; charset="us-ascii"
WinAOS, a companion program bundled with SatPC32, does the same thing.
And if you register SatPC32, the fee benefits AMSAT...
George, KA3HSW
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Robert
Bruninga
Sent: Wednesday, January 23, 2019 12:09 PM
To: amsat bb
Cc: Jin Kang
Subject: [amsat-bb] Easy Satellite Pass Grouping
I just found an easy way to get a printout off all amateur satellites for
the Morning, Afternoon, Evening and Overnight.
I have long been challenged to be able to easily recommend to students a
good list of satellites to go track during class hours. Now I have an
easy way.
Just go to heavens-above.com and select Amateur satellites - all passes.
Then when the page comes up, select PRINT and it comes out to 4 pages.
(for me anyway)... When I did it around 1 PM, I got the pages roughly
split to the four groups above.
For classes, I can toss the evening and overnight and have two pages for
my students to find a pass during class times. These are usually good for
several days (not exact times) but for quickly assessing at a glance, what
satellites are generally coming over this week during the 8 AM to 6 PM
class times.
I do not show them the list, they are supposed to PREDICT a satellite pass
time by themselves, but this bundling gives me an easy list from which to
suggest good possibilities.
Of course, you have to be sure to enter your ground station location and
your latitude will make a difference to the total number of satlliites
involved. Your mileage may vary!
Bob, WB4APR
------------------------------
Message: 7
Date: Wed, 23 Jan 2019 23:38:14 +0000 (UTC)
From: <aj9n@???.???>
To: amsat-bb@?????.???
Cc: WD9GIU@????.???? letsgoracin9@?????.???? pmotl@???.????
dweeks@????.???.??.??? wd9fmb@?????.???? dmoon@????.???.??.???
dstief@??????????????????????.???? batt2613@?????.????
bhrobinson@????????.???? liam@????????.????
davidd@???????????????.???? claydav@???????.???? n9ep@?????.????
srockenbach@?????????.???? pokchak@???.????
Jennifer@???????????????.???? stan_mucha@?????.????
rstriemer@?????????????.??? n8et@???.??.??????????.?.??????@????.????
norm@?????.???? markabalog@???.???????????????@??????.????
ab6ui@???.???? david.kunkee@????.????????????@?????????.????
socalmath@?????????.????????????@???????.???? w9uvi@????.????
brad.s.perranoski@??????.???? billmcalpin@???????.????
rwgrassl@???????.???? wd9bbe@???.???? lwatkins@????.???.??.???
n9io@????.???? tmccain@????.???.??.??? john1@?????????.????
landon.peter@?????.???? jjacobson@?????????.?????????????@???????.????
indycyndy@???????.???? mrcicchetti@??.?????????@??????????.????
ae9p@????.???? ddodge40@???????.???????????@????.????
k9byt@???????.???? davids@????????????.?????????????@?????.????
MathBA@????.???? MPerossio@?????????.??????????????@???.????
rjstriemer@?????.???? mark@????.??????????@?????????.????
w9wy@?????????.???? kerry0464@???????.???????????@???????????.????
ke9tc@?????????.?????????????@?????????.???? adeakin@?????????????.???
dmeier@???????.???? frjames@??????????.???? ak7n@???????.????
kb9krt@???????.???? Schmid7@????????.???????????@???????????????.????
dgwarren@???????.?????????????@?????????.???.??.???
Tarek.Chatila@???????.?????????????@???.???? andgab@????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2019-01-23
23:30 UTC
Message-ID: <2091713261.117450.1548286694748@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Upcoming ARISS Contact Schedule as of 2019-01-23 23:30 UTC
Quick list of scheduled contacts and events:
?
Ashbury College Junior School, Ottawa, ON, Canada, telebridge via VK5ZAI
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is David St-Jacques KG5FYI
Contact as successful: Wed 2019-01-23 19:51:36 UTC 22 deg (***)
?
Col?gio Campo de Flores, Almada, Portugal, direct via CS5SS
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is David St-Jacques KG5FYI
Contact is go for: Sat 2019-02-02 15:23:19 UTC 50 deg
?
Amur State University, Blagoveshchensk, Russia, direct via TBD (***)
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Oleg Konenenko
Contact is go for Tue 2019-02-05 08:25 UTC
?
?
2019-01-30 to 2019-02-02? Possible SSTV as part of Inter MAI but only for a
few orbits in range of Moscow.? (***)
?
2019-02-08 to 2019-02-10? Possible ARISS requested SSTV.? (***)
?
?
?
ARISS Contact Applications (United States)
?
The ARISS-US program?s education proposal window open Oct. 1 - Nov. 30, 2018
has now closed.? The next window should go open in the spring of 2019.
The ARISS webpage is at http://www.ariss.org/??
Note that there are links to other ARISS websites from this site.
?
?
?
?
ARISS Contact Applications (Europe, Africa and the Middle East)
?
Schools and Youth organizations in Europe, Africa and the Middle East
interested in setting up an ARISS radio contact with an astronaut on board
the International Space Station are invited to submit an application from
September to October and from February to April.
Please refer to details and the application form at
www.ariss-eu.org/school-contacts.? Applications should be addressed by email
to:? school.selection.manager@????????.???
?
ARISS Contact Applications (Canada, Central and South America, Asia and
Australia and Russia)
?
Organizations outside the United States can apply for an ARISS contact by
filling out an application.? Please direct questions to the appropriate
regional representative listed below. If your country is not specifically
listed, send your questions to the nearest ARISS Region listed. If you are
unsure which address to use, please send your question to the ARISS-Canada
representative; they will forward your question to the appropriate
coordinator.
?
For the application, click here.
ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD
ARISS-Japan, Asia, Pacific and Australia: Keigo Komuro, JA1KAB, Japan
Amateur Radio League (JARL)
ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR)
?
******************************************************************************
ARISS is always glad to receive listener reports for the above contacts.?
ARISS thanks everyone in advance for their assistance.? Feel free to send
your reports to aj9n@?????.??? or aj9n@???.???.
?
Listen for the ISS on the downlink of 145.8? MHz.
?
******************************************************************************
*
?
All ARISS contacts are made via the Kenwood radio unless otherwise noted.
?
******************************************************************************
*
Several?of you have sent me emails asking about the RAC ARISS website and
not being able?to get in.? That has now been changed to?
http://www.ariss.org/
Note that there are links to other ARISS websites from this?site.
****************************************************************************
Looking?for something new to do?? How about receiving DATV from the ISS???
If interested, then please go to the ARISS-EU website for complete?
details.? Look for the buttons indicating Ham?Video.? ? ? ? ? ? ? ? ? ? ? ?
? ?
? ? ? ? ? ? ? ? ? ? ?
http://www.ariss-eu.org/? ?
?
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight.? Contact Kerry at kbanke@?????????.???
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:?
Satoshi 7M3TJZ with 135
Francesco IK?WGF with 132
Gaston ON4WF with 123
Sergey RV3DR with 108
****************************************************************************
The?webpages listed below were all reviewed for accuracy.? Out of date
webpages?were removed, and new ones have been added.? If there are additional
ARISS?websites I need to know about, please let me know.
Note, all times?are approximate.? It is recommended that you do your own
orbital prediction?or start listening about 10 minutes before the listed
time.
All dates and?times listed follow International Standard ISO 8601 date and
time format?YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of?2019-01-23 23:30 UTC.? (***)
Here you will find a listing of all scheduled?school contacts, and
questions, other ISS related websites, IRLP and?Echolink websites, and
instructions for any contact that may be streamed?live.??
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
http://www.amsat.org/amsat/ariss/news/arissnews.txt
Total number?of ARISS ISS to earth school events is 1287. (***)
Each school counts as 1?event.
Total number of ARISS ISS to earth school contacts is 1230. (***)
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is?47.
A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Please?feel free to contact me if more detailed statistics are needed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The?following US states and entities have never had an ARISS contact:
South Dakota, Wyoming, American?Samoa, Guam, Northern Marianas Islands, and
the Virgin Islands.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
QSL?information may be found at:??
http://www.ariss.org/qsl-cards.html?
ISS callsigns:? DP?ISS, IR?ISS, NA1SS, OR4ISS,?RS?ISS
****************************************************************************
The successful school list has been updated as of 2019-01-23 23:30 UTC. (***)
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
Frequency? chart for packet, voice, and crossband repeater modes showing
Doppler? correction? as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf
Listing?of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf
Check out the Zoho reports of the ARISS?contacts
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
Exp. 58 on orbit
Oleg Konenenko
David St-Jacques KG5FYI
Anne McClain
?
****************************************************************************
73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors
?
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?
?
?
------------------------------
Message: 8
Date: Wed, 23 Jan 2019 22:34:13 -0500
From: Philip Jenkins <n4hf.philip@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] AMSAT at Charlotte NC Hamfest?
Message-ID:
<CAGdEbNbJ2bftJxz1hWs2f9Fpd8kJFLEPxtTh5LVhojj2QK5ZJg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hi all
I'm considering doing an AMSAT info booth at the Charlotte Hamfest this
year. The hours are a bit unusual, as it is a Friday & Saturday event -
3-7pm on Friday, March 8 and 830 am - 4 pm on Saturday, March 9. (I helped
with info tables at the Raleigh NC and Shelby NC hamfests last year, and
things went really well. John KG4AKV handled the demos at Raleigh, and John
K4SQC did those duties at Shelby.)
I haven't fully decided to do this yet, just wanted to see if other were
interested in helping me man the table on Saturday, and I'd REALLY
appreciate it if someone would attempt some demos outside (FM or SSB birds
- or both!).
I don't expect those helping to stand at the table ALL day, just give me a
break from time to time. (I tend to lose my voice after a few hours from
talking so much. :-) ) I also don't want to get in anyone's way if he or
she is already planning AMSAT activities of any kind there. Just let me
know.
Philip N4HF
------------------------------
Message: 9
Date: Thu, 24 Jan 2019 08:28:42 +0000
From: David Johnson <dave@?????.??.??>
To: amsat-bb <amsat-bb@?????.???>
Subject: [amsat-bb] FUNcube Warehouse Maintenance
Message-ID: <16428EB7-60F4-4163-AEA2-047F76552A9E@?????.??.??>
Content-Type: text/plain; charset=us-ascii
Hi,
There may be some short outages in the warehouse today as we do some upgrades.
Dashboards will pick up when the server comes back.
73
Dave, G4DPZ
------------------------------
Message: 10
Date: Wed, 23 Jan 2019 22:01:16 +0000
From: Ken M <va7kbm@???????.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: [amsat-bb] Masthead RF preamp suggestions?
Message-ID:
<MWHPR01MB264021735A01A487D4370BB298990@?????????????.????.????????????.???>
Content-Type: text/plain; charset="utf-8"
Hello all,
I am seeking suggestions for reasonably low-cost (but reasonably effective)
masthead preamps for 2m and 70cm to go along with a pair of omni QFH
antennas. Kit or commercial is fine.
Also any thoughts on how effective preamps might be on omni antennas vs
highly directional antennas.
Thanks -
73 Ken VA7KBM
------------------------------
Message: 11
Date: Thu, 24 Jan 2019 12:48:59 +0000
From: <planophore@???.??>
To: "Ken M" <va7kbm@???????.???>, "amsat-bb@?????.????
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] Masthead RF preamp suggestions?
Message-ID: <201901241248.x0OCmxvQ009202@??????.???.??>
Content-Type: text/plain; charset=ISO-8859-1
Ken,
Mini Kits in Australia have some very nice kits, reasonable prices, and
quick shipping
https://www.minikits.com.au/electronic-kits/rf-amplifiers/rf-preamplifiers
and for bias tees
https://www.minikits.com.au/electronic-kits/bias-tee
and lots of other interesting and neat stuff.
cheers, Graham ve3gtc near Ottawa Canada
On 1/23/2019, "Ken M" <va7kbm@???????.???> wrote:
>Hello all,
>
>I am seeking suggestions for reasonably low-cost (but reasonably effective)
masthead preamps for 2m and 70cm to go along with a pair of omni QFH
antennas Kit or commercial is fine.
>
>Also any thoughts on how effective preamps might be on omni antennas vs
highly directional antennas.
>
>Thanks -
>
>73 Ken VA7KBM
>_______________________________________________
>Sent via AMSAT-BB@?????.???. 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: Thu, 24 Jan 2019 14:02:20 +0000
From: "Stephen E. Belter" <seb@??????.???>
To: Ken M <va7kbm@???????.???>, "amsat-bb@?????.????
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] Masthead RF preamp suggestions?
Message-ID: <1A32BB32-C01B-4D38-A886-BF43B0B6B57B@??????.???>
Content-Type: text/plain; charset="utf-8"
Ken,
Highly directional antennas will outperform omni antennas by a significant
margin, assuming you're using azimuth and elevation rotors. Not only are
you getting a much stronger signal from the satellite, you're attenuating
the noise from all directions except where you're pointing.
To try to measure the difference, I've been comparing the number of packets
of telemetry I can decode from the Fox satellites using omni antennas vs.
steered directional antennas. All of the antennas used mast-mounted preamps
(SSB-Electronic GmbH, www.ssb.de) and FUNcube Pro-Plus receivers. The
directional antenna system typically copies 5-7 times as many packets as the
omnis.
You didn't specify your application: Are you only planning to *listen* to
satellites, or are you building a transmit/receive station?
If you are building a transmit/receive station, you'll also want a preamp
that has RF transmit detection and automatic switching (from transmit to
receive). You'll also want a preamp with good front-end filtering to reduce
the impact of the transmitter on the received signal.
I agree completely with putting the preamp at the masthead. The role the
preamp usually plays is to overcome the loss of the coax from the preamp to
the radio and to improve the sensitivity of a deaf radio. If your radio has
good sensitivity and the coax run is less than 3 meters, a preamp won't help
or won't help much.
Unfortunately, a preamp with automatic RF switching and good front-end
filtering isn't reasonably low-cost. If you're building a listen-only
station, you can get much less expensive preamps that work well.
I've had very good luck with the SSB-Electronic GmbH preamps sold by
www.ssbusa.com in the United States. Since you are in Canada, you may want
to go directly to the factory in Germany. The SSB preamps come in a
weatherproof case.
Advanced Receiver Research (ARR, www.advancedreceiver.com) has less
expensive preamps that are also popular, but you'll need to build the
weatherproof housing. The front-end filtering isn't as good as the SSB.
Good luck!
73, Steve N9IP
--
Steve Belter, seb@??????.???
?On 1/24/19, 7:33 AM, "AMSAT-BB on behalf of Ken M"
<amsat-bb-bounces@?????.??? on behalf of va7kbm@???????.???> wrote:
Hello all,
I am seeking suggestions for reasonably low-cost (but reasonably
effective) masthead preamps for 2m and 70cm to go along with a pair of omni
QFH antennas. Kit or commercial is fine.
Also any thoughts on how effective preamps might be on omni antennas vs
highly directional antennas.
Thanks -
73 Ken VA7KBM
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End of AMSAT-BB Digest, Vol 14, Issue 24
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