- AMSAT-BB - mailman.amsat.org

Re: Hawkeye 360 next three satellites this summer
by Robert Coppock 12 Jun '21

12 Jun '21

Will they be automating the canceling of HAM licenses and AMSAT memberships via this sat feed ? LOL Sorry about that Chief. 73 kfOg cm88pk Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10

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PSAT2 coverage improves 10-22 June
by Robert Bruninga 11 Jun '21

11 Jun '21

PSAT2(NO-104) will enter about 2 weeks of good USA coverage between about 10 to 22 June. Normally its low inclination orbit favors the southern USA. But the orbit is also elliptical and so there are times when the elevation angle to more northern stations rises as much as 20 degrees.. Bringing higher latitude stations into the footprint.. Currently it's VHF Xponder has been in DTMF & APRS-to-Voice (A2V) mode but with the ISS digipeater being inactive, we will enable PSAT2 for normal APRS operations plus the A2V feature. its HF/UHF transponder will remain in linear operation for PSK31 SSTV and Voice. We also note that PSAT(NO84) has awakened from poor sun angles and we will try to activate its digipeater. Bob, WB4APR

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Tentatively activating FM25 Friday June 11th
by John Brier 11 Jun '21

11 Jun '21

Hi folks, I'm going on a little road trip up the east coast to visit friends and family and I'll be taking my satellite gear, including my IC-9700, with me. Originally I was planning on leaving on Thursday from Raleigh, NC and spending all Thursday and much of Friday activating various grids like FM15/FM16/FM26/FM27/FM28 and Delaware, before I went to see friends in Fredericksburg, VA, Baltimore, MD, and Philadelphia, PA before coming back to Raleigh, NC around the 20th. I still planning on seeing all my friends and family but the trip will almost certainly start later. Earlier this week some stuff came up and it is pushing my preparation back so I am now targeting to leave on Friday. Also, I found out many people need FM25, including Christy KB6LTY who needs it for #488, and since it seems overall more rare than the others, combined with the fact I have less time I am focusing on just activating FM25 on Friday June 11th. If there is time along the way I may activate other grids like FM15 or FM16, but I don't know how likely that is. One of the things that is affecting my departure date is that part of my preparations include building a mount for my IC-9700 to sit atop a tripod PA speaker stand. Speaker stand: https://www.guitarcenter.com/Proline/LST2BK-Speaker-Stand-Black-12742280768… Basically, I'm trying to build something out of wood that sits on the speaker stand's post that can securely hold/support the IC-9700. This way I will be semi-portable and not anchored to my car. I was planning on starting the build of this on Monday/Tuesday but like I said, something came up. I didn't start working on it until Tuesday afternoon. Additionally, I found out the way I was planning on building this thing isn't going to work exactly like I thought, so I am spending extra time to adapt. There are other things I need to do to prepare for my trip like setting up an old laptop to run DXKeeper and LoTW as well as prepare for the overall trip, so I think at best I will be able to leave by Friday. If somehow I can leave on Thursday, I will reply to this email. Other than that, check my Twitter page for updates and passes. I don't know what passes I will be on but definitely most linear/FM sats that are decent for NA coverage while I'm in FM25. You can view my Twitter page here: https://twitter.com/SpaceComms1 73, John Brier KG4AKV

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Using Two Arrow Antennas
by Richard Lawn 11 Jun '21

11 Jun '21

I’ve made phasing lines for two Arrow antennas. I need to shorten the 435 canles just a bit but the 2 meter phasing lines are working great. My question is how best to mount the 2 antennas on the boom. Right now I have them mounted at 90 degrees and it seems to be working real well. Open to suggestions. 73 Rick, W2JAZ -- Sent from Gmail Mobile

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AO-91 & Field Day
by saguaroastro＠cox.net 10 Jun '21

10 Jun '21

This is really for the ops team, but I suppose it is of general interest. With field day approaching, I'm willing to lay odds that regardless of requests and announcements NOT to use AO-91 in eclipse, the lure of the satellite bonus will entice many to try, either knowingly or not. Has the ops team considered turning it off during Field day to keep it from getting killed? My 39.49 Burundian Francs worth. Rick Tejera Saguaro Astronomy Club www.saguaroastro.org Thunderbird Amateur Radio Club www.w7tbc.org

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Re: Ham Spy transmitter in WWII
by Robert Bruninga 10 Jun '21

10 Jun '21

On Thu, Jun 10, 2021 at 4:55 PM Greg D <ko6th.greg(a)gmail.com> wrote: > > Interesting find, Bob. I have a copy of the 1948 ARRL Handbook, and > they have a design for a "Self-Contained 60-Watt Transmitter for Three > Bands" (pg 173). Uses a 6V6GT and an 807 (not 804). Covers 3.5, 7, and > 14 megacycle bands (crystal controlled or with an external VFO; CW > only). 5R4GY for the rectifier, 1.2kv center tapped transformer. Yikes! > > Looks like quite a project. Speaking of 807s, I'm getting thirsty... > > 73, > > Greg KO6TH > > > Robert Bruninga wrote: >> I'm reading "the secret wireless war" and am surprised that the entire >> basis for transmitters throughout the British traffic network including >> spy radios and fixed stations transmission of decrypted ULTRA (Enigma) >> traffic to those with need-to-know was handled by a two tube 6V6 and >> 804 arrangement called the MKIII. >> >> The secret service built them all themselves from the design in the >> ham radio handbook to avoid raising suspicions if they began buying >> the few commercial ham equipment. >> >> That is the same arrangement as the first Novice transmitter I >> built back in 1963 in middle school just 18 years after the war. Amazing. >> >> Bob, WB4APR.

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For sale
by Michael Rohwedder 10 Jun '21

10 Jun '21

The TH-D72A HT has been sold. Like new Mirage KP-1/440 meter preamplifier. $75.00 Like new, never been used Diamond SS770R duplexer for dual OSCAR antennas or similar. $25 Shipping is via USPS Priority mail and your cost. Reasonable offers will be considered but these are really good buys. Mike WU9D

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Need satellite op in Va to operate our 13 Colonies station
by ytdave＠aol.com 10 Jun '21

10 Jun '21

I am Virginia coordinator for the annual 13 Colonies Special Event; our call is K2B. This year, the event coordinators are trying to get satellite operators, which they explained to me as follows: This email is going out to all State and Bonus station Managers. I know it is 20 days to go, but am asking a favor this year. It is in regards to the SATELLITES! It would be super if we can get just ONE operator from each state ... to work the Sat's. We tried this a few years back with limited success. There is also a Satellite endorsement for the certificate which only requires ONE Sat contact. Also an award plaque for the most Sat contacts. WM3PEN, GB13COL and TM13COL single operators will be included for the award. The more the merrier :) I will volunteer to be the SAT manager just for this year due to the short notice. UNLESS some one would like to do it! All I need is an email from you giving me the call sign of YOUR Sat OP! If we get at least 75% of the states to do this (12 STATIONS INCLUDING BONUS STATIONS OUT OF 16) It is a GO! If not? Anyone can still operate the Sats. Let me know ASAP because time is short. I don't do any satellite work myself, and I can assure you, there is no minimum time commitment. Drop me an email if anyone is interested. 73 David, K2WPM YTdave(a)aol.com

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BPF for 2m and 70cm?
by Herb Sims 10 Jun '21

10 Jun '21

I have looked all over the place for Bandpass filters for both 2m and 70cm antennas to put in front off my LNAs. Any companies in the US that sells them????? Thanks, Herb Please excuse any typo's as this was sent from my iPhone.

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Ham Spy transmitter in WWII
by Robert Bruninga 10 Jun '21

10 Jun '21

I'm reading "the secret wireless war" and am surprised that the entire basis for transmitters throughout the British traffic network including spy radios and fixed stations transmission of decrypted ULTRA (Enigma) traffic to those with need-to-know was handled by a two tube 6V6 and 804 arrangement called the MKIII. The secret service built them all themselves from the design in the ham radio handbook to avoid raising suspicions if they began buying the few commercial ham equipment. That is the same arrangement as the first Novice transmitter I built back in 1963 in middle school just 18 years after the war. Amazing. Bob, WB4APR.

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