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Author Topic: Venturing into 2m SSB territory.  (Read 20425 times)
AK4YH
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« Reply #45 on: September 26, 2017, 10:16:58 PM »

Great thank you!

Gil.
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AK4YH
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« Reply #46 on: October 02, 2017, 11:59:14 AM »

https://youtu.be/LaRsBtT52kc

Gil.
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W2WDX
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« Reply #47 on: October 06, 2017, 01:42:38 PM »

What I am about to say is purely anecdotal, so take it for what its worth. I have always used a Yaesu FT-221R (with the Mutek Board) for SSB. Not the best receiver, but I get out there.

Here's the thing. It's not really about the radio for 2M, it's about gain and loss. Antennas and feedline. I have operated 2m SSB at sea level (literally) for years. Recently, I moved into a 24 story co-op in the hills in the northern Bronx of New York City. After much negotiation with the Board of Directors and the City Buildings Department, I was able to get permission and permits to put up some antennas on the roof. One HF dipole, a few VHF/UHF verts, and a VHF/UHF Yagi setup. I was careful what I chose in terms of directional antennas, since access to the roof is limited. Even though I am the only occupant with a key, I still need to be "escorted" by building management employees.

I ended up with a 22 el loop fed Yagi for 2M SSB. I use a mast mounted LNA. The feedline (268') is Times Microwave LMR-1700. Here's my experience. At a total elevation of 434' above sea level (I can see the ocean from the roof), the extreme low-loss of the feedline, and the 20dB gain and low-noise Pre-amplifier, the silence on my old FT-221R was such that I thought I had a problem with the radio. Unplugging the antenna lead on the back of radio produced only a slight decrease in noise. So most of what I thought was atmospheric noise all these years in other situations, apparently was actually just combined noise from feedlines, poor antennas, poor grounding, and such things. The radio is actually quiet and sensitive. I was clearly hearing stations drifting in from the Carolinas over the ocean, likely tropo propagated.

The point being in my case, I learned even an old radio benefits from one simple basic fact; on 2m SSB make sure you have gain and low loss, on transmit of course, but more importantly on receive. Simple things like mast mounted LNA vs. one stuck at the transceiver means the difference between amplifying feed-line noise or amplifying actual signals.
« Last Edit: October 06, 2017, 01:46:03 PM by W2WDX » Logged

KW9WK
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« Reply #48 on: October 21, 2017, 05:49:56 PM »

Read through most all of the thread - and done a little searching on eBay and so forth - I am I to understand there really aren't any readily available rigs capable of 2m ssb operation, other than legacy rigs (scarce as hens teeth) ?

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Lenny, KW9WK, formerly AC9RN, formerly KB2NYA....
VE3WGO
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« Reply #49 on: October 21, 2017, 06:03:24 PM »

Not so.  Actually there are several nice radios that can do 2m SSB currently in production...  the Icom IC-9100, IC-7100, the Yaesu FT-991A, FT-817ND, FT-857D, and the Kenwood TS-2000 (and 2000X).

73, Ed VE3WGO
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KW9WK
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« Reply #50 on: October 21, 2017, 06:54:57 PM »

Duly noted! I've HF and 6m pretty much covered - looking for 2m - that's where it seems kinda daunting -
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Lenny, KW9WK, formerly AC9RN, formerly KB2NYA....
VE3WGO
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« Reply #51 on: October 21, 2017, 08:52:58 PM »

ah, I see.  So maybe a 2 meter transverter is what you need?  Maybe something from Down East Microwave, SSB Electronic, Elecraft, or Kuhne Electronic.  Those usually work with your HF radio tuned to 10 meters as the IF.  Because of the 2 MHz range of the 10 meter IF, the transverters usually cover the lower 2 MHz of 2 meters, ie 144-146 MHz, which is fine because SSB and CW operation is usually in the 144.0-144.3 MHz area.  And if you want to listen to some SSB ham satellites, the downlinks of many those are around 145.8-146.0 MHz

Your original point is probably correct.  I think there are no SSB+CW radios made now that are only for the 2 meter band, so the transverter route seems to be your only option if you don`t want other bands (especially HF) included.  Meanwhile, Icom has shown a prototype of the IC-9700 VHF-UHF radio at the Tokyo Ham Fair a month or so ago, that will have coverage of 2 meters, 70 cm, and 23 cm (ie 144, 430, and 1240 MHz bands), but there is no date yet released for when that radio would become available for sale.  It looks just like the IC-7300 but for the higher bands.

73, Ed VE3WGO
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KW9WK
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« Reply #52 on: October 22, 2017, 07:05:53 AM »

ah, I see.  So maybe a 2 meter transverter is what you need?  Maybe something from Down East Microwave, SSB Electronic, Elecraft, or Kuhne Electronic.  Those usually work with your HF radio tuned to 10 meters as the IF.  Because of the 2 MHz range of the 10 meter IF, the transverters usually cover the lower 2 MHz of 2 meters, ie 144-146 MHz, which is fine because SSB and CW operation is usually in the 144.0-144.3 MHz area.  And if you want to listen to some SSB ham satellites, the downlinks of many those are around 145.8-146.0 MHz

Your original point is probably correct.  I think there are no SSB+CW radios made now that are only for the 2 meter band, so the transverter route seems to be your only option if you don`t want other bands (especially HF) included.  Meanwhile, Icom has shown a prototype of the IC-9700 VHF-UHF radio at the Tokyo Ham Fair a month or so ago, that will have coverage of 2 meters, 70 cm, and 23 cm (ie 144, 430, and 1240 MHz bands), but there is no date yet released for when that radio would become available for sale.  It looks just like the IC-7300 but for the higher bands.

73, Ed VE3WGO

Transverter was actually my next question! Thanks!
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Lenny, KW9WK, formerly AC9RN, formerly KB2NYA....
AK4YH
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« Reply #53 on: October 22, 2017, 10:20:26 AM »

The is one new 2m SSB transceiver being sold today, the MFJ-9402.

Gil.
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KW9WK
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« Reply #54 on: October 22, 2017, 12:14:25 PM »

The is one new 2m SSB transceiver being sold today, the MFJ-9402.

Gil.

What is anyone's recent experience with these? I don't see any up to date reviews of them.
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Lenny, KW9WK, formerly AC9RN, formerly KB2NYA....
AA2UK
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« Reply #55 on: October 23, 2017, 07:24:29 AM »

The is one new 2m SSB transceiver being sold today, the MFJ-9402.

Gil.

What is anyone's recent experience with these? I don't see any up to date reviews of them.
These are nice starter rigs. The problem with all of these models is the lack of frequency stability and the lack of knowing where you are. This makes these rigs difficult if not impossible for digital modes or true weak signal work.
Bill, AA2UK
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