[AK-VHF] 23cm and 33cm

[Christopher Brown]

33cm FM only 30watts (TK-931HD)

23cm FM and SSB 10watts 736r

23cm SSB/JT65 via transverter and 1st stage amp 12watts (10Mhz locked
transverter, intended for future 23cm EME)


I have low NF LNA for 23cm but its not setup at the moment, intended for
EME.


Only antenna I have for these bands is a discone at the end of 40ft of LDF2

KL4E and I had 2way contacts on 1296.1 and 1295.4 several times early
last year and late the year before.

Last I heard KL6M had the gear but no terrestrial antennas.

Chris
WL7CLA


On 6/14/19 08:47, Edward R Cole wrote:
> Tom,
> 
> I have a MOT Spectra on 927.50 FM (about 20w) which drives a MOT amp 
> to 50-55w with 5w drive.  Antenna is 33 loop-yagi vertical pol with 
> 18 dBi at 51 feet.  I use a WA2ODO preamp in the electronics box at tower top.
> 
> Also run a DEMI 1296-28 MHz 20w transverter driving a 50w linear with 
> 4-5w (located at tower top with WA2ODO preamp) and use a 45 loop yagi 
> vertical pol with 20 dBi gain.  1296.100 SSB or FM (transverter does 
> not cover 1294.50).
> 
> So far not able to make contact on either band with anyone in 
> Anchorage though KL4E has copied my 1296 signal one-way.
> 
> My knowledge of who is equipped for these bans is incomplete:  KL7XJ 
> has 30 or 50w on 927.50 with 18 loop-yagi near 50-foot.  KL4E has 
> both bands.  KL6M probably but not 100% sure of status.  Supposedly 
> several Anchorage stations with converted commercial radios (5-30w) 
> in Anchorage area with unknown antennas.  Many years ago I used a 18 
> loop yagi with 15w radio portable from a 400-foot hill to contact 
> KL7YK with mobile at Table Mountain parking lot (81 miles).
> 
> The secret for working longer distance on these two bands is getting 
> the antenna high enough to clear trees and using a preamp mounted at 
> or near the antenna.  Cable losses at these frequencies will "eat 
> your lunch".  I run RF from 20w shack radios on both bands thru 
> 120-foot of 1-5/8 hardline followed by 47-foot of LMR-600 to get 
> approx 4-5w drive to the tower-located amps.  If I had the 50w amps 
> in the shack I would only get 12-15w to the antenna.  Same 5-6 dB 
> loss would reduce receiver NF to something like 8 dB = deaf!
> 
> Operating mw band is not anywhere near like doing 6m or 2m.
> 
> I would like to see a list of stations with gear on these bands which 
> lists RF power, Antenna gain, any preamps in use.
> 
> 73, Ed - KL7UW
> 
> At 06:00 PM 6/13/2019, Tom Elmore wrote:
>> Now that I have 6m, 2m, 1.25m and 70cm SSB stations built I am wondering is
>> 23cm or 33cm more in use here in southcentral?
>>
>>
>>
>> Thank You
>>
>>
>>
>> Tom Elmore   KA1NVZ
>>
>> Anchorage, Alaska
>>
>>
>>
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> 
> 73, Ed - KL7UW
>    http://www.kl7uw.com
> Dubus-NA Business mail:
>    dubususa at gmail.com 
> 
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