JUMA PA-100D is a high-performance 100W HF linear PA. Is fully assembled, tested & calibrated, small-sized with digital control, min. 100W* power amplifier. Designed by the JUMA® team (OH2NLT & OH7SV) and assembled, tested & calibrated by us @ roWaves Technologies, in Sibiu, Romania. Firmware copyright: Adrian Ryan, 5B4AIY & JUMA Radio Team. Hardware copyright: JUMA Radio Team (www.jumaradio.com)
✓ CE certified ( CE certificate can be sent upon request) ✓ 1 year warranty ✓ free technical & limited support via e-mail & WhatsApp ✓ how to use the PA-100D with many QRP TRXs ? See FAQs section below
roWaves Technologies owns the legal rights to manufacture, modify (partially) and market this amplifier.
Please note that we have received manufacturing license approval from JUMA for the PA1000+ (1kW) amplifier ! See details HERE.
Main features:
bands: 160/80/40/30/20/17/15/12/10 m (no 60m)
output power: up to 150W with 14Vdc/18A power supply
min. supply voltage: down to 10.5Vdc ( battery usage – portable operation)
STBY current: down to 90mA (*depends on LCD luminosity)
silent cooling fan noise: (25.6dBA)
adjustable gain: (2W-7W drive), memorized on each band with 2dB steps (G1-G4)
protection and optical alarm: in case of over-temperature, over-current, exceeded SWR
IMD3 distortions: -37dBc @ 90W, -41dBc @ 22W
input level: 2-7W (max. 7W all bands!)
automatically band detection: for any QRP TRx, via Frequency Sense Mode (only 1 x RF coax. cable necessary)
output adjustable gain: in 2dB steps
power supply cable included: (25A fused)
automatically band selection: possible for FT-817/18 (Yaesu CAT), Elecraft KX-2/3, ELAD FDM Duo, JUMA TRX-2, IC-705, X5105, mcHF
interconnection cables: not included, but available for purchase below
dimensions: approx. 19 x 17.6 x 6.6cm, weight 1.2kg
latest FW version: 4.1a – extensive tested by Adrian 5B4AIY
PA100D interconnection cables with following transceivers:
ROW-CA1: Juma TRX-2 cable (Digital Band Switch) – BUY HERE
ROW-CA2: FT817/818 cable (Digital Band Switch) – BUY HERE
ROW-CA3: mcHF cable (AUTO Band Det. with Freq. Sense) – BUY HERE
ROW-CA5: IC-705 cable (AUTO Band Det. with Freq. Sense) – BUY HERE
ROW-CA6: Elad FDM cable (AUTO Band Det. with Freq. Sense) – BUY HERE
ROW-CA7: KX2/KX3 cable (AUTO Band Det. with Freq. Sense) – BUY HERE
ROW-CA8: X5105 cable (AUTO Band Det. with Freq. Sense) – available on request
ROW-CA9: (tr)uSDX cable (AUTO Band Det. with Freq. Sense) – BUY HERE
Below you can find complete technical specifications, documentation (diagrams, measurements etc.). Current programmed FW version: 4.1a.
Shipping safe with DHL. See the estimated shipping cost to your country HERE.
Stock delivery: The standard order processing time is 4-7 working days (from stock) ! Any delays in processing time will be communicated to customers. We do not take any responsibility for delays due to DHL.
Backorders delivery: the estimated processing time and delivery is 2-4 weeks due to high demand. We expedite the orders based on the “first come first served” principle.
Payments: for this product, credit card or direct bank transfer are accepted. For PayPal payment requests, an extra€40 fee will be charged, due to PayPal charging system (only for this product).
Max. Pout, valid for your product (2-5% PWR variation, from part to part), but min. Pout delivered to 50R load is 100W, 160-10m. For ex. RPAD-09-21 @ 13.8Vdc ->
Ulim. needs to be configured (convenient for portable battery usage)
ON currents
Idc
90
18
mA
Adc
-@13.8Vdc, standby (LCD on, backlight set to default brightness, fan OFF)
-@13.8Vdc & max. RF power (Pin - 2W, gain 4, 160m ), current monitoring on LCD
FW version
FW
4.1a
-current firmware installed revision on this unit (apr. 2021)
Supply voltage connector
6P
Molex 5557 series
soldered on 4 x 1m wires, 1.5mm diameter each, fused @ 25Adc
Fan noise
Fn
25
dBA
- very silent fan, user selectable options
Fan ON temp.
fan ON
40 °C
104 °F
limits: 0°C...80°C / 32°F...170°F
LCD
2 x 16
CH
with blue backlight, contrast can be set by user
Mechanical dim.
L x W x H
190 x 176 x 66
mm
with case
Weight
g
1200
g
with case
Downloads:
User Manual v4.00a (ENG) - newest, Dec. 2021 (for FW rev. 4.00a – 11th May 2020)
Product Technical File (example)
IMD3 measurements @ 90W
Digital Control Board - schematic 1
Digital Control Board - schematic 2
Main Board Module (filters, SWR bridge etc.) - schematic
RF Amplifier Board - schematic
Frequency Sense Board - schematic
Interconnection diagram with other HF transceivers
Assembly image
FAQ:
Q: Can i use the PA100D amplifier with other QRP transceivers, other than the JUMA TRX-2 HF QRP TRx?
A: Yes, the amplifier can be used with other QRP radios, like the Yaesu FT-817/818, M0NKA mcHF SDR, Elecraft KX-3, Xiegu X5105, Elad FDM-DUO, IC-705, Juma TRX-2 etc. See a general interconnection spec. sheet HERE.
Q: How can i use the PA-100D with JUMA TRX-2 transceiver? Is there any interconnection cable available?
A: The interconnection cable [ROW-CA1]is available for purchase HERE. The PA-100D can be simple interconnected with JUMA TRX-2 via Digital Band Switch Mode. The F-sense mode will be selected in PA-100D amplifier. Cable will be connected to RS-232 jack (TRX-2) and to RS-232 jack (PA-100D). Interconnection cable ends are properly marked. Also, the RF drive cable is needed, between the TRX and the PA. A simple 50Ω, 0.5m-1m long, BNC-male to BNC-male cable is enough. Connection diagram available HERE. Demo video available soon HERE.
Q: How can i use the PA-100D with FT-817/818 transceivers? Is there any interconnection cable available?
A: Yes, we built the interconnection cable [ROW-CA2] for FT817/818 radios. The interconnection cable is available for purchase HERE. This cable allows the QRP transceiver in use to automatically select the desired band in the PA100D amplifier (Digital Band Switch Mode).The band selection in the transceiver is synchronised with the band selection in the PA100D. See the demo video HERE.
Q: How can i use the PA-100D with mcHF transceiver? Is there any interconnection cable available?
A: Yes, we built the interconnection cable [ROW-CA3] for the mcHF radio. The cable is available for purchase HERE. This cable allows the PA100D amplifier to receive a PTT T/R signal from the mcHF and the RF drive signal that will be detected by the Freq. Sense module (AUTO Band Det. with Freq. Sense Mode), in order to activate the TX mode (when OPER M mode is selected in PA100D). Demo video available soon HERE.
Q: Is there any power supply spare cable for the PA-100D amplifier ?
A: Yes, we built the 1m long / 25Adc Fused Power Supply spare cable [ROW-CA4] that is available HERE.
Q: How can i use the PA-100D with ICOM IC-705 transceiver? Is there any interconnection cable available?
A: The interconnection cable [ROW-CA5] is available for purchase HERE. The PA-100D can be simple interconnected with IC-705 via AUTO Band Det. with Freq. Sense Mode. The F-sense mode will be selected in PA-100D amplifier. Cable will be connected to SEND jack (IC-705) and to T/R (PA-100D). Interconnection cable ends are properly marked. Also, the RF drive cable is needed, between the TRX and the PA. A simple 50Ω, 0.5m-1m long, BNC-male to BNC-male cable is enough. Demo video available soon HERE.
Q: How can i use the PA-100D with Elad FDM-DUO transceiver? Is there any interconnection cable available?
A: The interconnection cable [ROW-CA6] is available for purchase HERE. The PA-100D can be simple interconnected with ELAD FDM-Duo via AUTO Band Det. with Freq. Sense Mode. The F-sense mode will be selected in PA-100D amplifier. Cable will be connected to PTT-OUT (Elad) and to T/R (PA-100D). Interconnection cable ends are properly marked. Also, the RF drive cable is needed, between the TRX and the PA. A simple 50Ω, 0.5m-1m long, BNC-male to BNC-male cable is enough. See the demo video HERE.
Q: How can i use the PA-100D with Elecraft KX2/KX3 transceivers? Is there any interconnection cable available?
A: The interconnection cable [ROW-CA7] will be available for purchase HERE. The PA-100D can be simple interconnected with KX-2/3 radio via Digital Band Switch Mode. The F-sense mode will be selected in PA-100D amplifier. Cable will be connected to ACC2 jack (KX2/3) and to T/R (PA-100D). Interconnection cable ends are properly marked. Also, the RF drive cable is needed, between the TRX and the PA. A simple 50Ω, 0.5m-1m long, BNC-male to BNC-male cable is enough. Demo video available soon HERE.
Q: How can i use the PA-100D with Xiegu X5105 transceiver? Is there any interconnection cable available?
A: The interconnection cable [ROW-CA8] will be available for purchase HERE. The PA-100D can be simple interconnected with X-5105 radio via AUTO Band Det. with Freq. Sense Mode. The F-sense mode will be selected in PA-100D amplifier. Cable will be connected to ACC jack (X5105) and to T/R (PA-100D). Interconnection cable ends are properly marked. Also, the RF drive cable is needed, between the TRX and the PA. A simple 50Ω, 0.5m-1m long, BNC-male to BNC-male cable is enough. Demo video available soon HERE.
Weight
1580 g
Dimensions
30 × 18 × 10 cm
14 reviews for JUMA PA-100D, 100W HF linear PA, 160-10m
vk7zpd (verified owner)–
Juma PA100-D arrived quickly to Australia, works very well with the Hermes Lite 2, build quality excellent, easy to use and configure. Andrei is very responsive I had a couple of questions which were answered promptly.
Barto46 (verified owner)–
Noul model JUMA PA100-D inpreuna cu FDM-DUO TRANCEIVER si QSF-06 fac o echipa HF perfecta
JUMA PA100-D calitate in toate punctele de vedere
Pentru a functiona JUMA PA100-D cu FDM-DUO si QSF-06 cu ajutorul lui DK3QN un pofesional an SDR etc.. sa preparat un cablu PTT special
1:configurar JUMA PA100-D nota 10
2:puterea in cele 6 frecvente testat cu antena SIRIO BLIZZARD 2700+ARO H.F. Y 27 MHZ (CB)10m,12m,15,17,20m si 40m poti ajunge foarte usor la 160 w poate si mai mult dar nu este recomendat, cel putin 100w in cele 6 frecventei este foarte bien pentru JUMA PA100-D
3: constructia JUMA PA100-D este excelenta si calitatea este de nota 10
4:are foarte multe protecti necesare pentru radioamatori incepatori si chiar pentru profesionali
EA4HRV
73,Sebastian
STEIN, ROBERT A M.D. (verified owner)–
RoWaves, and in particular Andrei went the extra mile to help me solve a problem I was having with my new amp. (Turned out to be a bad PTT cable that I made). They have been very responsive to all inquiries, and surprised me when they responded to my email from the USA within minutes when it was night in Romania. Would not hesitate to do business with them again.
Dave AF5IC (verified owner)–
I recently ordered a Juma PA100D from roWaves Technologies, and I could not be more pleased! The amp arrived promptly, and was well packaged. When I emailed a question regarding the amp, it was answered quickly, and to my satisfaction. Once installed, the amp exceeded my expectations – It was tuned to perfection right out of the box.
I look forward to doing business with this company again!
Dave
AF5IC
Claus (verified owner)–
Received everything nicely and safely packed. Very happy with my Juma PA100-D now. Hope you will be able to offer the big Juma PA1000 as well in the future.
Jan PA 0 WIT (verified owner)–
I am very satisfied with this fine PA-100D. It is very well build on professional circuit boards and was shipped in 24 hours from Romania to The Netherlands.
It came with its own Technical File and the output is from 180 W at 160M to 120 W on 10M, plenty of power for my Elecraft KX3! The size is so small it will be easy to take it in the field. The fan starts when needed and is very quiet.
I had a minor problem after some days and Andrei was very helpfull to help me out. His service is outstanding and I highly recommend this amplifier and RoWaves, 5 stars!
Dave Hammond-N1LQ (verified owner)–
Just an add-on to my previous review of November 10, 2021. Shortly after starting to use my new PA-100D, though a fault of my own making I burned-out the main board in the unit beyond easy repair. It was 100% my foolish mistake.
Andrei and his team built me a replacement main board over the next six weeks 6 weeks. It arrived earlier this month. After an easy install it restored my PA-100D to its original condition and operation. I could not be happier. This was a special project for Andrei and his team. His price and time to complete the new board was very reasonable.
It is a pleasure to be able to do business with such a fine person, team and company. They get my highest recommendation. 100% satisfied!.
Rated 5 out of 5
Mike kb3lan (verified owner)–
I just received the JUMA PA100-D from roWaves. Shipping to the US was extremely fast, just 3 or 4 days. I’m using the amp with an Icom IC-705 in Auto Band Detection-Freq. Sense Mode and it is working great. I really like how you can control the gain and the fan is so quiet.
Don’t hesitate to order if you’re from the US, the communication from Andrei is great and no issues with shipping. There is not a better amp price/performance wise available for your QRP radio.
Rated 5 out of 5
Dave Hammond (verified owner)–
The roWaves Juma PA-100D is an excellent 100+W amplifier. It is just the thing for adding some punch to your QRP signal when needed. It is a quality built unit and offers tremendous features, many which were unexpected by me. See it in action on YouTube with Andrei-YO6TJJ giving the demonstration. I love this little amp!
Andrei and the entire roWaves team are a joy to work with. My transaction was without any difficulty and the unit shipped stateside very quickly. More importantly Andrei and his team are dedicated to superior customer service and support. Buy from roWaves with total confidence as Andrei and the team are the real deal!
Rated 5 out of 5
Vladimir, R9HCH (verified owner)–
Cool amplifier! Exactly what I needed to field work. The build quality is respectable. Quiet fans. The controls are simple and straightforward. I used this amplifier to work in SSB, CW fnd Digital modes. An excellent choice for the price !
Rated 5 out of 5
György Zsolt yo6zs –
The JUMA PA100-D is a great and nice amp and was built very well by roWaves. This is a professional team. When connected to my Juma TRX, 817 Ft and KX3 I use it in Cw and SSB mode. It usually runs at 50W-90W so it doesn’t heat up and the fan is quiet.
For me, the right choice in terms of price / performance as well. My recommendation!
Rated 5 out of 5
Franc (verified owner)–
JUMA PA100-D is a great amplifier and very well built by the roWaves Technologies team. I use it connected to my SunSDR2-Pro for digital communications on FT8. It usually runs at 30W-50W so it doesn’t heat up and the fan is quiet.
For me, the right choice is also in terms of price / performance. My recommendation!
73 Franc S59FC
Rated 5 out of 5
Marcel Jorba EA3IN (verified owner)–
Beautiful amp. Exactly what I was looking for.
Well built and well thinked
I use it between my SUNSDR2pro and my KPA500/ACOM2000.
The fact to be able to control the amp gain is a charm
Now thinking on the PA1000 🙂
Congrats
Rated 5 out of 5
Mot aurel –
I am very satisfied with this product.I RECOMMAND IT TO ALL RADIOAMATEURS AROUND THE WORLD.I would like to Mr.ANDREI AVIRVAREI and his team for their effort in making and adjusting the amplifier.Call ANDREI with confidence and he will offer you the best transceiver in the world.I also received this product from him and I am very satisfied.Highly recommended.My name is Aurel from ROMANIA
Only logged in customers who have purchased this product may leave a review.
Hi there,please start a chat window with us below or send us an email at support@rowaves.com. You can also use the contact form on the "Contact" page. We are available only Monday to Friday, from 9-17h. Thank you!
vk7zpd (verified owner) –
Juma PA100-D arrived quickly to Australia, works very well with the Hermes Lite 2, build quality excellent, easy to use and configure. Andrei is very responsive I had a couple of questions which were answered promptly.
Barto46 (verified owner) –
Noul model JUMA PA100-D inpreuna cu FDM-DUO TRANCEIVER si QSF-06 fac o echipa HF perfecta
JUMA PA100-D calitate in toate punctele de vedere
Pentru a functiona JUMA PA100-D cu FDM-DUO si QSF-06 cu ajutorul lui DK3QN un pofesional an SDR etc.. sa preparat un cablu PTT special
1:configurar JUMA PA100-D nota 10
2:puterea in cele 6 frecvente testat cu antena SIRIO BLIZZARD 2700+ARO H.F. Y 27 MHZ (CB)10m,12m,15,17,20m si 40m poti ajunge foarte usor la 160 w poate si mai mult dar nu este recomendat, cel putin 100w in cele 6 frecventei este foarte bien pentru JUMA PA100-D
3: constructia JUMA PA100-D este excelenta si calitatea este de nota 10
4:are foarte multe protecti necesare pentru radioamatori incepatori si chiar pentru profesionali
EA4HRV
73,Sebastian
STEIN, ROBERT A M.D. (verified owner) –
RoWaves, and in particular Andrei went the extra mile to help me solve a problem I was having with my new amp. (Turned out to be a bad PTT cable that I made). They have been very responsive to all inquiries, and surprised me when they responded to my email from the USA within minutes when it was night in Romania. Would not hesitate to do business with them again.
Dave AF5IC (verified owner) –
I recently ordered a Juma PA100D from roWaves Technologies, and I could not be more pleased! The amp arrived promptly, and was well packaged. When I emailed a question regarding the amp, it was answered quickly, and to my satisfaction. Once installed, the amp exceeded my expectations – It was tuned to perfection right out of the box.
I look forward to doing business with this company again!
Dave
AF5IC
Claus (verified owner) –
Received everything nicely and safely packed. Very happy with my Juma PA100-D now. Hope you will be able to offer the big Juma PA1000 as well in the future.
Jan PA 0 WIT (verified owner) –
I am very satisfied with this fine PA-100D. It is very well build on professional circuit boards and was shipped in 24 hours from Romania to The Netherlands.
It came with its own Technical File and the output is from 180 W at 160M to 120 W on 10M, plenty of power for my Elecraft KX3! The size is so small it will be easy to take it in the field. The fan starts when needed and is very quiet.
I had a minor problem after some days and Andrei was very helpfull to help me out. His service is outstanding and I highly recommend this amplifier and RoWaves, 5 stars!
Dave Hammond-N1LQ (verified owner) –
Just an add-on to my previous review of November 10, 2021. Shortly after starting to use my new PA-100D, though a fault of my own making I burned-out the main board in the unit beyond easy repair. It was 100% my foolish mistake.
Andrei and his team built me a replacement main board over the next six weeks 6 weeks. It arrived earlier this month. After an easy install it restored my PA-100D to its original condition and operation. I could not be happier. This was a special project for Andrei and his team. His price and time to complete the new board was very reasonable.
It is a pleasure to be able to do business with such a fine person, team and company. They get my highest recommendation. 100% satisfied!.
Mike kb3lan (verified owner) –
I just received the JUMA PA100-D from roWaves. Shipping to the US was extremely fast, just 3 or 4 days. I’m using the amp with an Icom IC-705 in Auto Band Detection-Freq. Sense Mode and it is working great. I really like how you can control the gain and the fan is so quiet.
Don’t hesitate to order if you’re from the US, the communication from Andrei is great and no issues with shipping. There is not a better amp price/performance wise available for your QRP radio.
Dave Hammond (verified owner) –
The roWaves Juma PA-100D is an excellent 100+W amplifier. It is just the thing for adding some punch to your QRP signal when needed. It is a quality built unit and offers tremendous features, many which were unexpected by me. See it in action on YouTube with Andrei-YO6TJJ giving the demonstration. I love this little amp!
Andrei and the entire roWaves team are a joy to work with. My transaction was without any difficulty and the unit shipped stateside very quickly. More importantly Andrei and his team are dedicated to superior customer service and support. Buy from roWaves with total confidence as Andrei and the team are the real deal!
Vladimir, R9HCH (verified owner) –
Cool amplifier! Exactly what I needed to field work. The build quality is respectable. Quiet fans. The controls are simple and straightforward. I used this amplifier to work in SSB, CW fnd Digital modes. An excellent choice for the price !
György Zsolt yo6zs –
The JUMA PA100-D is a great and nice amp and was built very well by roWaves. This is a professional team. When connected to my Juma TRX, 817 Ft and KX3 I use it in Cw and SSB mode. It usually runs at 50W-90W so it doesn’t heat up and the fan is quiet.
For me, the right choice in terms of price / performance as well. My recommendation!
Franc (verified owner) –
JUMA PA100-D is a great amplifier and very well built by the roWaves Technologies team. I use it connected to my SunSDR2-Pro for digital communications on FT8. It usually runs at 30W-50W so it doesn’t heat up and the fan is quiet.
For me, the right choice is also in terms of price / performance. My recommendation!
73 Franc S59FC
Marcel Jorba EA3IN (verified owner) –
Beautiful amp. Exactly what I was looking for.
Well built and well thinked
I use it between my SUNSDR2pro and my KPA500/ACOM2000.
The fact to be able to control the amp gain is a charm
Now thinking on the PA1000 🙂
Congrats
Mot aurel –
I am very satisfied with this product.I RECOMMAND IT TO ALL RADIOAMATEURS AROUND THE WORLD.I would like to Mr.ANDREI AVIRVAREI and his team for their effort in making and adjusting the amplifier.Call ANDREI with confidence and he will offer you the best transceiver in the world.I also received this product from him and I am very satisfied.Highly recommended.My name is Aurel from ROMANIA